Mach M3
Dr. Mach
Lamps and Engineering
4.3.2 Changing the dispersing lens
The dispersing lens is made of a high-quality plastic.
In case the dispersing lens looses its optical
characteristics, this can reduce the luminous
intensity and the light quality, which can be provided.
It may be necessary to exchange the dispersing
lens.
To change the dispersion lens proceed as follows:
Always place the dispersing lens on a soft, non-
scratching base to preserve its surface.
• Turn off the lamp.
• Remove the upper housing part of the lamp as
described in chapter 4.2.
ATTENTION: Parts of the housing may be
very hot immediately after use.
• Loosen the six screws 1 at the bottom housing
part 2 with a cross screw driver.
ATTENTION: Hold the dispersing lens 3 and
the retaining ring 4 while loosening the
screws 1, so the lens and the ring cannot fall
down.
• Remove the dispersing lens 3 and the retaining
ring 4 downwards.
• Replace the dispersing lens.
• Fix the dispersing lens and the retaining ring at
the bottom part of the lamp housing.
ATTENTION: Secure the screws 1 against
loosening with safety lake and adhesive at the
screw head.
1
2
1
1
2
3
4
59200001 Edition 06 28.11.2002 / Bak page 15/22
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